Questions tagged [jpeg]
JPEG is an adjustable "lossy" compression method commonly used in digital photograph. The most common filename extensions for images using the JPEG format are .jpg and .jpeg. Compare to alternative image formats such as TIFF and the various RAW formats.
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How do I find raw files corresponding to selected JPEGS
I shoot RAW + JPEG on fujifilm cameras and 90% of the time I'm fully content with my jpeg images but a few could use some editing. To save time I would like to cull my photos into three categories:
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Finding niche image files relating to medical imaging
I have a very specific image formatting request and thought someone here may be able to help me.
I'm looking for a list of image formats that are used in medical imaging. I've had trouble finding ...
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How to use JPG embedded in RAW for color calibration in darktable
My camera (Canon EOS R5) does a great job with colors for the embedded JPG, but I am unable to achieve similar colors (mainly skin tones) when processing the RAW version of the image in darktable.
I ...
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Why do my RAW files from shooting RAW + JPEG appear very dark?
I was wondering do others has the same problem as I do with this option. After I take a photo with my canon 4000d using Raw + jpeg and check it out the photo on my laptop, the raw is very dark, which ...
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ExifTool does not extract corrupted EXIF metadata from jpeg file. How to repair it?
The image viewer nomacs offers a quick way to add image notes via Exif.Image.ImageDescription metadata.
After having edited the form for ...
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What quality to choose when converting to JPG?
When you export a picture to JPG you can normally choose its quality in a 1-100 scale. I like to keep a good quality but it wouldn't make sense to keep a JPG that will be almost as big as the original ...
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Where does darktable store image tags?
Darktable has what seems to be useful image tagging functionality, but where does it store those tags?
Are they written to the file itself as metadata, or are tags only stored in external files?
I.e. ...
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Printing digital photos: why do (most it seems) print shops only handle PDF not raster formats like PNG?
I am in Sydney, Australia.
My otherwise very helpful local print shop only handles PDF (with limitations as described in this forum posting).
I have so far not found any print shops in Sydney that ...
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How does Darktable compare to Adobe Lightroom for editing JPEGs?
I mostly modify JPG images taken from my Nikon camera. How does Darktable compare to Adobe Lightroom for this purpose?
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Does well printed black text stay essentially unchanged on a highly compressed image of a page of text?
We are digitizing a huge collection of paper repair manuals (not violating copyright) and the print quality and evenness of tone of the text is quite excellent.
I am using using cell phone images for ...
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Why do RAW images look worse than JPEGs in editing programs?
I've found that when you load a RAW image into an editing program such as Lightroom/Aperture, the image is usually worse than if you just took the image as JPEG. Now I understand that the camera does ...
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reparing corrupt pictures [duplicate]
I have lots of corrupted image files. the are grey or have several issues. is there an tool out there to fix issues like that?
Maybe opensource ?
Thanks in advance.
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Why don't most cameras support PNG format?
I prefer PNG format to JPG, because JPG uses lossy compression.
When I capture a screen in my PC or scan a picture or document in my scanner, I always save them as PNG format.
If a camera could ...
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Edit an image's data so that a digital camera can read it
Context
I have a Polaroid PoGo Zink printer (link to manual) that I would like to print an image on. Unfortunately I cannot get the Bluetooth to connect succesfully to any of my devices, so I am ...
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Fast, lossy compressed, 10 bit image format (Or 12 bit or 16 bit)
I'm looking for an image format to keep my photo archive. Currently I'm keeping compressed DNG + 80% quality JPG. JPG is useful because you can easily convert and manage, is small and is fast to read/...
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A JPEG image EXIF Orientation problem
I have an image which it is strange, The EXIF Orientation tag is 8 (left bottom, i.e. rotate 270 CW)
Image source:
https://drive.google.com/file/d/1WQOuy4wZpofvSLu3p6TmiOQI-udN7ooS/view?usp=sharing
I ...
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How does Picasa process RAW photos?
How does Picasa decide how to process RAW photos? When I shoot in RAW+JPEG the two pictures can look dramatically different. Is it just converting the RAW files upon import, or is post-processing ...
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How do you identify file type/compression in a TIFF file?
From what I understand TIFF is like the .mkv container for photography - it supports a variety of compressed and uncompressed formats.
But how would you go about checking if the data within the TIFF ...
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How to recover the orginal name of picture file .JPG made by device?
I'm wonder how to recover the original name of picture which was made by device (for example Camera or phone)? Is it possible? Let's say that someone make a photo and then change name of the .JPG file ...
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Breaking down the format of the "Y Cb Cr Sub Sampling" EXIF tag
When using exiftool to inspect various images, I've seen lots of different values for the Y Cb Cr Sub Sampling tag. A few ...
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Something is corrupting my jpegs. How can I trace what did this?
I keep finding jpeg images on my laptop, which are corrupt. Some have a gray band at the bottom, some are reported bad by Bad Peggy (but look normal when viewed in e.g. XNView) and some are just ...
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How best to convert PNG to WebP
I have 900 large, proprietary, multi-coloured PNG images of different sizes scanned @ 600 PPI ranging from 10MB to 50MB. The scans (ie photos) are of prints. The average size is 35MB. They all have a ...
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Metering Mode Doesn't Effect RAW Files? What About The JPEG Preview?
[Sony A7R5]
Ok, this is more about confirming what I think is true.
I know that the metering mode doesn't make a difference to the RAW files when I'm shooting in manual because I'm setting ISO, ...
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Auto (or manual) renaming of various JPG files
Part 1.
I have two camera sources.
1 Mobile which produces IMG_20180618_035708.jpg files
2.Panasonic Lx7 which outputs P1910846.jpg
So, I would like to be able to bulk rename the P1910846.jpg to ...
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How can I add a border to a JPEG photo without affecting quality?
I have a photo in JPEG format with resolution 4680x3120. I want to add a white border around this photo, turning it into a 5200x3467 photo (for printing reasons).
Clearly, I am not altering or ...
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Which JPG has better quality? And which Exif Byte Order is better?
I have two folders of "the same" JPG images that I made over 10 years ago, when I was a kid, but the size of photos in one folder is different than the other.
The photos were made on my old ...
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Apple Preview vs. GIMP, Photoshop, Bridge etc. as PNG/TIFF to JPEG converter
I have a bunch of PNG and TIFF files—scans of old family photos and documents. I will keep them as archival masters, but for the purpose of online sharing I am creating JPEG's from these files. The ...
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propritery SANYO metadata
How does an old SANYO camera store proprietary metadata on JPG that are not part of the Exif section? Like if the photo has the correct date or if it was taken using the hand or smile detection or ...
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Two EXACTLY the same .jpg images with one image more than twice the file size of the other - Why? (PART 2)
So I have 2 JPEG files at 2000x2000 pixels, that I made out of Photoshop: (wetransfer_2-jpg_2023-04-26_2146.zip)
File_1) I saved directly from an RGB TIFF with "save as" JPEG quality 9 -- ...
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How can I easily convert a large number of pictures from RAW to scaled down JPG?
I have a collection of shots from the same session in RAW and want to covert all of them to JPG. Each one should have a curve applied, then be scaled and sharpened using the same settings.
What is ...
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JPEG vs RAW - how big is the difference [duplicate]
I've read some of the questions and answers on here but they are all years old. (some of them over 10 years ago)
In this day and age, is there still a significant difference in quality of the image ...
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How to recover and load XMP from exported JPEG in darktable?
I've lost a XMP file for the edit, which I very much like...
Luckily, I've got the RAW for the photo and the exported JPEG for the edit. And, digiKam is showing a tab with XMP profile (for the JPEG of ...
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Why has my tiff file converted to jpeg and shrunk to almost nothing [closed]
i recently had a photograph of my art taken by a photography studio and the file size was huge, over 100mb. Here are the details of that
I then cropped the image myself so it could be used for ...
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Is there a common subset of exif metadata tags for scanned photographs?
I've recently been scanning a collection of photographs into jpeg files.
I know how to use tools such as exiftool to examine and change metadata tags.
But while I'm ...
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Why is this jpg 0 bytes and websites often can't upload it? [closed]
I have a certain cellphone with a Gallery app that makes so-called 0 byte files. In fact the file you're looking at is one of them. So maybe somebody could tell me what's the matter with the format?
...
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How can I easily replace raw files with jpeg format in Lightroom?
I only shoot in RAW, but for a normal travel trip I don't want to keep all photos in RAW because they occupy a lot of storage space. Is there a plugin in Lightroom to click a photo and convert the RAW ...
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How can put 2 jpg images side by side in a new jpg without losing metadata or image quality?
I have lots of photos with writing on the back. I've scanned the fronts and backs into jpgs, and now I want to create a single jpg for each front/back pair. The front and back images should go side by ...
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How to distinguish a photo from camera and an image from Paint/Photoshop?
Is there a way to identify if an image (ex: .jpg) was taken with a camera (either from a phone or some other source) and not fabricated artificially with some tool like Paint or Photoshop?
I give you ...
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date in the picture can you check that the sotała has changed?
I would like to check if the date in the photo has been changed, if someone can do it.I can't find much on the internet about it.
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Suspect photograph timestamp data has been altered
I received photographs over email from a client which I suspect were taken in 2022 but the client insists are from 2021.
I looked at the metadata, filenames, and date modified timestamps to look for ...
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What does it take to get the Selphy to print an edited JPG?
We took a picture with a digital camera, and used GNU Image Manipulation Program (GIMP) to remove some stuff in the background, and tried to print it on our Canon Selphy CP1200. The print failed, and ...
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How to batch convert old NEF photos to JPEG/HEIF with in-camera processing look?
I have ~9k NEF photos from a Nikon D5000 that are currently taking up ~100GB. It's been 8+ years without me touching them, so I don't see a reason to assume I will ever process and edit them.
I'd ...
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Does JPEG compression reduce actual image size?
In this article it says "Generally speaking, the algorithm behind this format makes some trade-offs to lower the image size."
Just wanted to check that this is referring to image file size, ...
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How can modified images be displayed on a Nikon camera?
I made changes to my RAW images in Lightroom and exported them as JPEG to save on an SD card which I inserted into my camera. When I tried to show the pictures to my family and friends, I got the ...
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Is it possible to find out what compression ratio was used for a particular JPEG?
I have a couple of JPEGs. Is there a way to find out which compression level was used when encoding them? That is, were they encoded at level 60 or 90?
The reason I'm asking is because I have a site ...
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How to separate the RGB colour space to only N colours?
In a JPEG image, we may have thousands of distinct RGB values.
What is the process called of translating these numerous RGB values to just N distinct colour names/values?
(I'd like to know the name ...
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Leica Q2M JPG files cannot be read by any of my Ubuntu (21.10) image software
I very recently picked up a Leica Q2M, and on my first attempt to read JPG files recorded on its storage media I've found that nothing on my Ubuntu 21.10 installation can read the files. I've tried <...
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Should I use Active D-Lighting when shooting Raw?
I understand (ref) that I can do my own post processing to get the same effect that Active D-Lighting gives.
But does the in-camera ADL get applied to the raw image data or is it only done to the ...
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Is jpeg or png the standard for fine art photography?
Is jpeg the predominant file format for fine art digital photographs, or what advantages would png have quality-wise that jpeg doesn't for photography, given that it takes up much more hard drive ...
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Lightroom: how to not lose quality by exporting a photo from a previously exported photo collection?
I'm thinking to use Lightroom in order to organize catalogues by year (to avoid having large areas of files that I normally have in the cloud and download locally to work them).
Having catalogs per ...
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